Finding the Fourth Proportional to 69,920.65, 104,764.33 and 49,106.89

Step by Step Solution

1. Step 1: Write the proportion equation
   69,920.65 : 104,764.33 = 49,106.89 : x
2. Step 2: Convert to fraction form
   69,920.65/104,764.33 = 49,106.89/x
3. Step 3: Cross multiply
   69,920.65x = 104,764.33 × 49,106.89
4. Step 4: Simplify right side
   69,920.65x = 5,144,650,429.23
5. Step 5: Solve for x
   x = 5,144,650,429.23/69,920.65
6. Step 6: Final answer
   x = 73,578.41